蝎蛉科(长翅目)昆虫雌性生殖系统构造及其在分类学上的意义

蝎蛉科Panorpidae6种蝎蛉的雌性生殖系统间存在显著差异,尤其是卵巢管数目、受精囊包膜颜色、附腺大小、及各部分相互间位置。卵巢管为多滋式,每个卵巢所含卵巢管数目在长瓣蝎蛉Panorpa longihypovalva Hua et Cai和路氏新蝎蛉Neopanorpa lui Chou et Ran中为10根,在大蝎蛉P.magna Chou中为16根,在太白蝎蛉P.obtusa Cheng中为18根,在染翅蝎蛉P.tincta Navas中有28根,在长白山蝎蛉P.changbaishana nom.nov.中,一个卵巢一般由8根卵巢管组成,而另一个经常为10根,表明在同一个体中有不对称性。长白山蝎蛉的受精囊包膜为红色,而其它种类透明。大蝎蛉附腺在6种蝎蛉中最大,几乎与卵巢等粗。表明雌性生殖系统可用于蝎蛉科的种类鉴别,并简要讨论了长翅目Mecoptera的系统发育关系。此外,长白山蝎蛉Panorpa changbaishana Hua是为Panorpa choui Hua,1998所提订的新名。

STRUCTURES OF THE FEMALE REPRODUCTIVE SYSTEMS IN PANORPIDAE (MECOPTERA) REMARKS ON THEIR TAXONOMIC SIGNIFICANCE

The female reproductive systems vary prominently among six Chinese species in the family Panorpidae, notably in the number of ovarioles, the color of spermathecal membrane, the size of accessory glands, and the relative position of each other. The ovaries are of polytrophic type. There are 10 ovarioles in each ovary in Panorpa longihypovalva Hua et Cai and Neopanorpa lui Chou et Ran, 16 ovarioles in P. magna Chou, 18 in P. obtusa Cheng, and 28 ovarioles in P.tincta Navás. P. changbashana Hua generally possesses 8 ovarioles in one ovary and 10 in the other, showing asymmetry in a same individual. The spermathecal membrane is red in P. changbaishana Hua, but transparent in others. The accessory glands of P. rnagna are the largest among the six species, almost as thick as its ovary. We conduded that the female reproductive systems are useful in species determination in Panorpidae, and the phylogenetic relationships of Mecoptera are briefly discussed. Besides, Panorpa shangbaishana Hua is a new name proposed for Panorpa choui Hua, 1998.